ClassID:

118995

C21D7/13 - CPC Classification

Classification description:

Modifying the physical properties of iron or steel by deformation by hot working

Recent Application in this class:
#1
20260124660
2026-05-07

PLATED STEEL SHEET FOR HOT PRESS FORMING, AND METHOD OF MANUFACTURING THE SAME

#2
20260062779
2026-03-05

HOT-ROLLED AND COATED STEEL SHEET FOR HOT-STAMPING, HOT-STAMPED COATED STEEL PART AND METHODS FOR MANUFACTURING THE SAME

#3
20260062778
2026-03-05

HOT-ROLLED AND COATED STEEL SHEET FOR HOT-STAMPING, HOT-STAMPED COATED STEEL PART AND METHODS FOR MANUFACTURING THE SAME

#4
20260028707
2026-01-29

RAIL WELDING TRANSITION MATERIAL RESISTANT TO STRESS CORROSION DAMAGE AND PREPARATION METHOD THEREOF

#5
20260022444
2026-01-22

METHOD FOR MANUFACTURING A METAL SHEET WITH A ZNAL COATING AND WITH OPTIMIZED WIPING, CORRESPONDING METAL SHEET, PART AND VEHICLE

#6
20260015685
2026-01-15

Press hardening method

#7
20250333830
2025-10-30

SLURRY-BLASTED HOT-ROLL-BASED HOT DIP ALUMINIZED STEEL STRIP

#8
20250333825
2025-10-30

NEW DUPLEX STAINLESS STEEL

#9
20250313911
2025-10-09

Steel sheet and high strength press hardened steel part having excellent bending and method of manufacturing the same

#10
20250290169
2025-09-18

HOT-STAMPED PART AND METHOD FOR MANUFACTURING SAME

#11
20250197978
2025-06-19

PRODUCTION PROCESS OF S355J2 HOT-ROLLED H-BEAM FOR CE-CONTAINING BEAM-COLUMN MEMBER

#12
20250137083
2025-05-01

STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING AND METHOD OF MANUFACTURING THE SAME

#13
20250137082
2025-05-01

STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING AND METHOD OF MANUFACTURING THE SAME

#14
20250025927
2025-01-23

CONDUCTIVE POST-FURNACE HEATING OF SHEET FOR HOT FORMING

#15
20240360538
2024-10-31

STEEL FOR HIGH-TEMPERATURE CARBURIZED GEAR SHAFT AND MANUFACTURING METHOD FOR STEEL

#16
20240287635
2024-08-29

METHOD FOR PREPARING TITANIUM-CONTAINING ULTRA-LOW-CARBON STEEL

#17
20240270325
2024-08-15

AUTOMOBILE BODY

#18
20240254606
2024-08-01

FERROUS ALLOY FOIL, MANUFACTURING METHOD THEREFOR, AND COMPONENT USING SAME

#19
20240200199
2024-06-20

COATED FLAT STEEL PRODUCT AND METHOD FOR THE PRODUCTION THEREOF

#20
20240183016
2024-06-06

NON-HEAT TREATED STEEL FOR CRANKSHAFTS AND CRANKSHAFT USING NON-HEAT TREATED STEEL

#21
20240167136
2024-05-23

HIGH STRENGTH AND HIGH PLASTICITY HOT-FORMING STEEL WITH OXIDATION RESISTANCE FOR AUTOMOBILES AND HOT-FORMING PROCESS

#22
20240124962
2024-04-18

Steel for gear and method for manufacturing gear using the same

#23
20240052446
2024-02-15

Device and method for continuously applying transverse tension in annealing process of ultra-thin strip

#24
20240051005
2024-02-15

PLATED STEEL SHEET FOR HOT PRESS FORMING, AND METHOD OF MANUFACTURING THE SAME

#25
20230416865
2023-12-28

WIRE ROD FOR 5000 MPA-GRADE DIAMOND WIRE AND PRODUCTION METHOD THEREFOR

#26
20230392240
2023-12-07

High carbon martensitic stainless steel

#27
20230332282
2023-10-19

Superaustenitic Material

#28
20230323520
2023-10-12

SLURRY-BLASTED HOT-ROLL-BASED HOT DIP ALUMINIZED STEEL STRIP

#29
20230323493
2023-10-12

FORGED PART OF STEEL AND A METHOD OF MANUFACTURING THEREOF

#30
20230272497
2023-08-31

Ultra-high strength maraging stainless steel with salt-water corrosion resistance

#31
20230271635
2023-08-31

RAILWAY AXLE

#32
20230250505
2023-08-10

RAIL AND METHOD FOR PRODUCING THE SAME

#33
20230243006
2023-08-03

DEHYDROGENATION METHOD FOR STEEL MATERIAL AND STEEL PRODUCT, AND PRODUCTION METHOD FOR STEEL MATERIAL AND STEEL PRODUCT

#34
20230212723
2023-07-06

DUPLEX STAINLESS STEEL SEAMLESS PIPE

#35
20230167557
2023-06-01

HOT-ROLLED AND COATED STEEL SHEET FOR HOT-STAMPING, HOT-STAMPED COATED STEEL PART AND METHODS FOR MANUFACTURING THE SAME

#36
20230151468
2023-05-18

Hot-Rolled Flat Steel Product and Method for the Production Thereof

#37
20230150070
2023-05-18

Fe—Ni based alloy welding wire for welding 800H alloy and preparation method thereof and method for welding 800H alloy

#38
20230146538
2023-05-11

Crankshaft and method of manufacturing the same

#39
20230119030
2023-04-20

METHOD FOR MANUFACTURING A METAL SHEET WITH A ZnAl COATING AND WITH OPTIMIZED WIPING, CORRESPONDING METAL SHEET, PART AND VEHICLE

#40
20230107809
2023-04-06

HOT-ROLLED STEEL SHEET

#41
20230002843
2023-01-05

THERMOFORMED COMPONENT HAVING EXCELLENT COATING ADHESION, AND MANUFACTURING METHOD THEREFOR

#42
20230001466
2023-01-05

HOT-STAMPING FORMED BODY

#43
20220403487
2022-12-22

FORGED PART OF STEEL AND A METHOD OF MANUFACTURING THEREOF

#44
20220396845
2022-12-15

Press hardening method

#45
20220388574
2022-12-08

Forming sheet metal part for a vehicle frame and corresponding production method

#46
20220380874
2022-12-01

Steel material and steel product using the same

#47
20220380863
2022-12-01

Press hardening method

#48
20220340995
2022-10-27

INTERMEDIATE HEATING STATION

#49
20220282348
2022-09-08

METHOD FOR MANUFACTURING A HIGH STRENGTH STEEL PRODUCT AND STEEL PRODUCT THEREBY OBTAINED

#50
20220275481
2022-09-01

HOT STAMPED STEEL

#51
20220195550
2022-06-23

AIR-HARDENED MACHINE COMPONENTS

#52
20220195547
2022-06-23

Optimized gamma-prime strengthened austenitic trip steel and designing methods of same

#53
20220176434
2022-06-09

Conductive post-furnace heating of sheet for hot forming

#54
20220168996
2022-06-02

Hot-stamped part and manufacturing method therefor

#55
20220145436
2022-05-12

Superaustenitic Material

#56
20220119903
2022-04-21

Steel Wire Having Excellent Straightness Quality and Manufacturing Method Thereof

#57
20220105553
2022-04-07

METHOD AND SYSTEM FOR USING AIR GAPS IN HOT-STAMPING TOOLS TO FORM TAILOR TEMPERED PROPERTIES

#58
20220090244
2022-03-24

Steel for gear and method for manufacturing gear using the same

#59
20220016693
2022-01-20

Method for producing metal components and metal component produced in this way

#60
20210395849
2021-12-23

High-strength low-carbon bainitic fire-resistant steel and preparation method thereof

#61
20210395848
2021-12-23

Method of press-hardening a hot-shapable plate

#62
20210381088
2021-12-09

Steel for nitrocarburizing and nitrocarburized component, and methods of producing same

#63
20210340643
2021-11-04

Hot-press molding method and hot-press molded product

#64
20210340640
2021-11-04

Ultra-high strength maraging stainless steel with salt-water corrosion resistance

#65
20210316801
2021-10-14

Tracked undercarriage component, and method for producing the same

#66
20210316361
2021-10-14

Method for manufacturing αFe—SiC composite material, and αFe—SiC composite material

#67
20210262054
2021-08-26

Shaped boron tubular structure support

#68
20210198776
2021-07-01

Austenitic stainless alloy

#69
20210163080
2021-06-03

Welded steel part used as motor vehicle part, and method of manufacturing said welded steel part

#70
20210156014
2021-05-27

Steel wire, a method for manufacturing the same, and method for manufacturing a spring or medical wire products

#71
20210102283
2021-04-08

Steel for nitrocarburizing and nitrocarburized component, and methods of producing same

#72
20210017617
2021-01-21

METHOD FOR GENERATING METALLIC COMPONENTS HAVING CUSTOMISED COMPONENT PROPERTIES

#73
20210010117
2021-01-14

Forged part of bainitic steel and a method of manufacturing thereof

#74
20210002749
2021-01-07

Pipe element for gas pressure vessel, and gas pressure vessel

#75
20200391273
2020-12-17

Electrical heating apparatus

#76
20200270732
2020-08-27

Method for manufacturing a metal sheet with a ZnAl coating and with optimized wiping, corresponding metal sheet, part and vehicle

#77
20200263268
2020-08-20

High manganese steel for low temperature applications having excellent surface quality and a manufacturing method thereof

#78
20200224297
2020-07-16

HOT-ROLLED AND COATED STEEL SHEET FOR HOT-STAMPING, HOT-STAMPED COATED STEEL PART AND METHODS FOR MANUFACTURING THE SAME

#79
20200199701
2020-06-25

Methods of modifying material properties of workpieces using high-pressure-torsion apparatuses

#80
20200199700
2020-06-25

Methods of modifying material properties of workpieces using high-pressure-torsion apparatuses

#81
20200199699
2020-06-25

Methods of modifying material properties of workpieces using high-pressure-torsion apparatuses

#82
20200140967
2020-05-07

Method for modifying surface grain structure of the material and apparatus thereof

#83
20200063247
2020-02-27

Quench and temper corrosion resistant steel alloy and method for producing the alloy

#84
20200040436
2020-02-06

Steel material, oil-well steel pipe, and method for producing steel material

#85
20190366414
2019-12-05

Systems and methods for processing alloy ingots

#86
20190323099
2019-10-24

Micro alloyed steel and method for producing said steel

#87
20190271065
2019-09-05

Steel for Machine Structural Use

#88
20190241988
2019-08-08

HOT-PRESSING STEEL PLATE, PRESS-MOLDED ARTICLE, AND METHOD FOR MANUFACTURING PRESS-MOLDED ARTICLE

#89
20190226060
2019-07-25

Very high strength martensitic steel or part and method of fabrication

#90
20190177812
2019-06-13

Method and device for forming and hardening steel materials

#91
20190176436
2019-06-13

Chassis component having high durability

#92
20190169707
2019-06-06

Hot-pressed steel sheet member, method of manufacturing the same, and steel sheet for hot pressing

#93
20190144981
2019-05-16

Austenitic stainless steel and production method therefor

#94
20190136357
2019-05-09

Copper-nickel-tin alloy, method for the production and use thereof

#95
20190136354
2019-05-09

Non-heat treated steel for induction hardening

#96
20190127829
2019-05-02

Method for manufacturing a martensitic stainless steel part from a sheet

#97
20190106759
2019-04-11

Steel sheet, coated steel sheet, method for producing hot-rolled steel sheet, method for producing full hard cold-rolled steel sheet, method for producing steel sheet, and method for producing coated steel sheet

#98
20190040486
2019-02-07

Case hardening method for high performance long life martensitic stainless steel bearings

#99
20190024204
2019-01-24

Dual hardness steel article

#100
20190022726
2019-01-24

Large scale metal forming control system and method

#101
20190017132
2019-01-17

Ferritic stainless steel and heat-resistant member

#102
20180371587
2018-12-27

Thick steel plate for high heat input welding and having great heat-affected area toughness and manufacturing method therefor

#103
20180371574
2018-12-27

HIGH-STRENGTH THIN STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

#104
20180363105
2018-12-20

Method Of Manufacturing A Ferrous Alloy Article Using Powder Metallurgy Processing

#105
20180354081
2018-12-13

Fluid end and method of manufacturing it

#106
20180327873
2018-11-15

Engineering Steel with a Bainitic Structure, Forged Parts Produced Therefrom and Method for Producing a Forged Part

#107
20180312948
2018-11-01

Austenitic stainless alloy

#108
20180305782
2018-10-25

Method for producing roller-formed, partially hardened profiles

#109
20180304583
2018-10-25

Component made of metallic composite material and method for the manufacture of the component by hot forming

#110
20180260717
2018-09-13

Microalloyed steel mechanical property prediction method based on globally additive model

#111
20180251868
2018-09-06

Optimized gamma-prime strengthened austenitic trip steel and designing methods of same

#112
20180202014
2018-07-19

STEEL PRODUCT AND METHOD OF PRODUCING THE PRODUCT

#113
20180169730
2018-06-21

Cooling of dies using solid conductors

#114
20180155806
2018-06-07

High-strength thin steel sheet and method for manufacturing the same

#115
20180155805
2018-06-07

High toughness and high tensile strength thick steel plate with excellent material homogeneity and production method for same

#116
20180117660
2018-05-03

Hot stamping apparatus and method for preventing plating from sticking to mold

#117
20180100224
2018-04-12

Method for the hot forming of a steel component

#118
20180080097
2018-03-22

High frequency heat treatment method of ultra-high strength parts

#119
20180073091
2018-03-15

Tool for realising a press quenching and tempering method

#120
20180056369
2018-03-01

Hot steel forging in horizontal press

#121
20180051664
2018-02-22

METHOD OF MANUFACTURING A FUEL DISTRIBUTOR

#122
20180023171
2018-01-25

STEEL SHEET FOR WARM PRESS FORMING, WARM-PRESSED MEMBER, AND MANUFACTURING METHODS THEREOF

#123
20170362673
2017-12-21

Processes for reducing flatness deviations in alloy articles

#124
20170349987
2017-12-07

High-strength steel with yield strength of 800 MPa and production method therefor

#125
20170321294
2017-11-09

Method for manufacturing a high strength steel product and steel product thereby obtained

#126
20170314086
2017-11-02

Cold work tool material, cold work tool and method for manufacturing same

#127
20170298491
2017-10-19

Method for minimizing the global production cost of long metal products and production plant operating according to such method

#128
20170292178
2017-10-12

Rolled steel material for fracture splitting connecting rod

#129
20170275716
2017-09-28

Nanocrystalline bainitic steels, shafts, gas turbine engines, and methods of manufacturing nanocrystalline bainitic steels

#130
20170268083
2017-09-21

High-strength steel for steel forgings, and steel forging

#131
20170216950
2017-08-03

Machine component and method for producing the same

#132
20170211434
2017-07-27

Poppet valve and method for manufacturing same

#133
20170191142
2017-07-06

Method for producing a component having improved elongation at break properties

#134
20170137904
2017-05-18

Rolled steel bar for machine structural use and method of producing the same

#135
20170089393
2017-03-30

Method of forming a bearing component

#136
20170088913
2017-03-30

High toughness and high tensile strength thick steel plate and production method therefor

#137
20170088910
2017-03-30

CORROSION AND CRACKING RESISTANT HIGH MANGANESE AUSTENITIC STEELS CONTAINING PASSIVATING ELEMENTS

#138
20170048931
2017-02-16

Molding apparatus

#139
20170044635
2017-02-16

Steel for surface-treated mechanical parts with high characteristics, and mechanical parts in this steel and manufacturing method thereof

#140
20170029911
2017-02-02

Austenitic stainless steel and method for producing the same

#141
20170016084
2017-01-19

Case hardening method for high performance long life martensitic stainless steel bearings

#142
20170002447
2017-01-05

Quench and temper corrosion resistant steel alloy

#143
20160369365
2016-12-22

Martensitic steel and method for producing same

#144
20160348202
2016-12-01

Hot work tool material and method for manufacturing hot work tool

#145
20160340753
2016-11-24

Maraging steel

#146
20160312653
2016-10-27

Nanostructured ferritic alloy components and related articles

#147
20160312331
2016-10-27

Steel sheet for hot press formed product having superior bendability and ultra-high strength, hot press formed product using same, and method for manufacturing same

#148
20160312330
2016-10-27

Hot-pressed steel sheet member, method of manufacturing the same, and steel sheet for hot pressing

#149
20160312325
2016-10-27

Hot-pressed steel sheet member, method of manufacturing the same, and steel sheet for hot pressing

#150
20160298239
2016-10-13

Method of producing hot-stamped article

#151
20160298205
2016-10-13

Forming of metallic glass by rapid capacitor discharge

#152
20160265077
2016-09-15

Method of producing roughly shaped material for rolling bearing

#153
20160244855
2016-08-25

Method For Trimming A Hot Formed Part

#154
20160177410
2016-06-23

Method of hot forming hybrid parts

#155
20160167100
2016-06-16

Systems and methods for processing alloy ingots

#156
20160160311
2016-06-09

Method for forming blank and method for determining preforming shape

#157
20160160307
2016-06-09

Low alloy oil well steel pipe and method for manufacturing same

#158
20160145712
2016-05-26

High carbon steel wire rod and method for manufacturing same

#159
20160145704
2016-05-26

Hot-stamped part and method of manufacturing the same

#160
20160144600
2016-05-26

Steel sheet for hot press-forming

#161
20160130675
2016-05-12

METHOD FOR PRODUCING A COMPONENT BY HOT FORMING A PRE-PRODUCT MADE OF STEEL

#162
20160122851
2016-05-05

Non-magnetic alloy forgings

#163
20160122840
2016-05-05

METHODS FOR PROCESSING NANOSTRUCTURED FERRITIC ALLOYS, AND ARTICLES PRODUCED THEREBY

#164
20160097114
2016-04-07

Hot rolled ferritic stainless steel sheet for cold rolling raw material

#165
20160076124
2016-03-17

HIGH STRENGTH HOT ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME (AS AMENDED)

#166
20160068924
2016-03-10

Method for manufacturing superior 13Cr tool coupler

#167
20160024610
2016-01-28

High strength steel sheet excellent in delayed fracture resistance and low temperature toughness, and high strength member manufactured using the same

#168
20160017455
2016-01-21

Method of making a dual hardness steel article

#169
20160017449
2016-01-21

700Mpa-level high-strength hot rolling Q and P steel and manufacturing method thereof

#170
20160010169
2016-01-14

Method for hot forming, in particular for press hardening

#171
20150375286
2015-12-31

Method of manufacturing hot deep drawn steel parts of sheet metal

#172
20150360282
2015-12-17

Modular micro mill and method of manufacturing a steel long product

#173
20150337417
2015-11-26

Microstructure of high-alloy steel and a heat treatment method of producing the same

#174
20150322554
2015-11-12

Methods for making high hardness, high toughness iron-base alloys

#175
20150315686
2015-11-05

Hot-rolled stainless steel sheet having excellent hardness and low-temperature impact properties

#176
20150307976
2015-10-29

Zirconium alloys with improved corrosion/creep resistance

#177
20150299818
2015-10-22

Thermal-assisted roll forming of high strength material

#178
20150266526
2015-09-24

Air-hardenable bainitic steel part

#179
20150259771
2015-09-17

High strength low alloy steel and method of manufacturing

#180
20150232972
2015-08-20

Non-normalized steel composition and connecting rod using the same, and method of manufacturing the connecting rod

#181
20150191813
2015-07-09

Hot stamped high strength part excellent in post painting anticorrosion property and method of production of same

#182
20150191805
2015-07-09

Steel wire rod having high strength and ductility and method for producing same

#183
20150176101
2015-06-25

HOLLOW STABILIZER, AND STEEL PIPE FOR HOLLOW STABILIZERS AND METHOD OF PRODUCING THE SAME

#184
20150147589
2015-05-28

Rolled steel that hardens by means of precipitation after hot-forming and/or quenching with a tool having very high strength and ductility, and method for manufacturing same

#185
20150147224
2015-05-28

Steel for wheel

#186
20150143861
2015-05-28

Plastic working method of metals and plastic working apparatus

#187
20150137434
2015-05-21

Apparatus to quench a ring-shaped article

#188
20150137433
2015-05-21

Deformation correcting device

#189
20150129157
2015-05-14

Method of manufacturing martensitic stainless steel sheet using twin roll strip caster

#190
20150129094
2015-05-14

Bearing steel excellent in cold workability and manufacturing method thereof

#191
20150129093
2015-05-14

Methods for processing metal alloys

#192
20150118095
2015-04-30

Method of manufacturing a ferrous alloy article using powder metallurgy processing

#193
20150114199
2015-04-30

Methods of thermo-mechanically processing tool steel and tools made from thermo-mechanically processed tool steels

#194
20150083282
2015-03-26

Seamless steel pipe and method for producing the same

#195
20150068648
2015-03-12

Multi step processing method for the fabrication of complex articles made of metallic glasses

#196
20150041026
2015-02-12

Ingot for bearing and production process

#197
20150027596
2015-01-29

Steel sheet for hot press-forming, method for manufacturing the same, and method for producing hot press-formed parts using the same

#198
20150026957
2015-01-29

Method for manufacturing forged steel roll

#199
20140373351
2014-12-25

Process for producing forged product

#200
20140363693
2014-12-11

Metal substrate for fixing member, manufacturing method therefor, fixing member, and fixing assembly

#201
20140345753
2014-11-27

SYSTEM AND METHOD FOR HOT-FORMING BLANKS

#202
20140345351
2014-11-27

Apparatus for electrical-assisted incremental forming and process thereof

#203
20140290322
2014-10-02

Method for producing a component by hot forming a pre-product made of steel

#204
20140261921
2014-09-18

Process to improve fatigue strength of micro alloy steels, forged parts made from the process and an apparatus to execute the process

#205
20140260492
2014-09-18

Split-pass open-die forging for hard-to-forge, strain-path sensitive titanium-base and nickel-base alloys

#206
20140255719
2014-09-11

Thermomechanical processing of high strength non-magnetic corrosion resistant material

#207
20140238099
2014-08-28

Process for making forged and machined components

#208
20140216612
2014-08-07

Process for manufacturing steel, for hot forming or quenching in a tool, having improved ductility

#209
20140212687
2014-07-31

Method of thermomechanical shaping a final product with very high strength and a product produced thereby

#210
20140191018
2014-07-10

Welded hot-rolled high-strength steel structural members and methods

#211
20140158258
2014-06-12

Ni-added steel plate and method of manufacturing the same

#212
20140123722
2014-05-08

Energization heating device and method

#213
20140102163
2014-04-17

Forming of metallic glass by rapid capacitor discharge forging

#214
20140076470
2014-03-20

Method for the production of very high strength martensitic steel and sheet or part thus obtained

#215
20140047888
2014-02-20

Sheet forming of metallic glass by rapid capacitor discharge

#216
20140041768
2014-02-13

Fabrication method for stepped forged material

#217
20140037980
2014-02-06

Hot stamped article, method of producing hot stamped article, energy absorbing member, and method of producing energy absorbing member

#218
20140033787
2014-02-06

Forming of metallic glass by rapid capacitor discharge

#219
20140030544
2014-01-30

Hot stamped high strength part excellent in post painting anticorrosion property and method of production of same

#220
20140030137
2014-01-30

Steel for carburizing or carbonitriding use

#221
20140027082
2014-01-30

Stress free steel and rapid production of same

#222
20140014234
2014-01-16

Case hardening steel, method for producing same, and mechanical structural part using case hardening steel

#223
20130333190
2013-12-19

Method for bending sheet metal and product of sheet metal

#224
20130327446
2013-12-12

Aircraft engine shaft comprising a maraging steel having a tensile strength of 2300MPa or more

#225
20130186106
2013-07-25

Precipitation hardening martensitic stainless steel, and steam turbine long blade, steam turbine, and power plant using the same

#226
20130174945
2013-07-11

Bearing steel and ingot material for bearing having excellent rolling contact fatigue life characteristics and method for manufacturing the same

#227
20130174512
2013-07-11

Welded hot-rolled high-strength steel structural members and methods

#228
20130081741
2013-04-04

Method of achieving trip microstructure in steels by means of deformation heat

#229
20130076017
2013-03-28

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